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The 15 Billion Pound RailwaySeries 1 Clips
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Prefabricated glulam beams—Platforms and Plague Pits
Duration: 01:51
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Tunnel boring machine breakthrough—Tunnels Under the Thames
Duration: 01:01
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Fish Rescue—Tunnels Under the Thames
Duration: 02:35
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Protecting London's historic buildings
Duration: 02:25
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Trail: BBC Two - The Fifteen Billion Pound Railway
Duration: 00:30





